Rana crassipes Buchholz and Peters In Peters, 1875, Monatsber. Preuss. Akad. Wiss. Berlin, 1875: 201. Holotype: ZMB 8360 according to Bauer, Günther, and Klipfel, 1995, in Bauer et al. (eds.), Herpetol. Contr. W.C.H. Peters: 50. Type locality: "Abo", Nigeria.
Rana perpalmata De Witte, 1922, Rev. Zool. Afr., 10: 320. Syntypes: MRAC (6 specimens), by original designation. Type locality: "Butu Polo, River. Mapanga", "Kai Bumba, Rv. Mala", Ganda Sundi, Riv. Mateke", all three localities in the "Bassin du Chiloango", Dem. Rep. Congo. Synonymy by Parker, 1936, Proc. Zool. Soc. London, 1936: 138; Perret, 1966, Zool. Jahrb., Jena, Abt. Syst., 93: 351.
Rana (Rana ) perpalmata — De Witte, 1930, Rev. Zool. Bot. Afr., 19: 258.
Paleorana crassipes — Scortecci, 1931, Atti Soc. Ital. Sci. Nat. Mus. Civ. Stor. Nat. Milano, 70: 17.
Paleorana perpalmata — Scortecci, 1931, Atti Soc. Ital. Sci. Nat. Mus. Civ. Stor. Nat. Milano, 70: 17.
Rana (Conraua) crassipes — Parker, 1936, Proc. Zool. Soc. London, 1936: 138.
Rana (Conraua) perpalmata — Laurent, 1940, Rev. Zool. Bot. Afr., 33: 281.
Conraua crassipes crassipes — Perret, 1966, Zool. Jahrb., Jena, Abt. Syst., 93: 351.
Abo Slippery Frog (Frank and Ramus, 1995, Compl. Guide Scient. Common Names Amph. Rept. World: 98).
Nigeria to Dem. Rep. Congo.
De la Riva, 1994, Rev. Esp. Herpetol., 8: 130, provided a record for Equatorial Guinea. Frétey and Blanc, 2001, Bull. Soc. Zool. France, 126: 384, reported this species from Gabon. Lasso, Rial, Castroviejo, and De la Riva, 2002, Graellsia, 58: 21-34, provided notes on ecological distribution in Equatorial Guinea. Schiřtz, 1963, Vidensk. Medd. Dansk Naturhist. Foren., 125: 30, provided records for Nigeria.
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